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- Report
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Testimony before the Committee on Energy and Natural Resources, United States Senate
- Report
Testimony before the Subcommittee on Energy Research and Production, Committee on Science and Technology, U.S. House of Representatives
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- Report
Testimony before the Subcommittee on Public Assistance and Unemployment Compensation, Committee on Ways and Means, U.S. House of Representatives
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- Report
Testimony before the Subcommittee on Social Security, Committee on Ways and Means, U.S. House of Representatives
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Testimony before the Subcommittee on Housing and Consumer Interests, Select Committee on Aging, U.S. House of Representatives
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- Report